Avaliação comparativa de sensores meteorológicos de baixo custo para tratores agrícolas

Abstract

The use of low-cost microcontrollers in agricultural machinery has stood out as a viable alternative for agricultural monitoring, especially for meteorological data. The objective of this study was to compare the performance of low-cost sensors in operation, verifying their efficiency and accuracy in data collection on an agricultural tractor in motion and stationary. The experiment was carried out with six Arduino meteorological sensors: DHT11, DHT22, AHT10, AHT25, HTUD21, and BME280. These were connected to an Arduino, and readings were taken with two sets of equipment—one placed on the stationary tractor and the other on the tractor in motion. Eight treatments were used for each set, with four performed at 3 p.m. and four at 5 p.m. It was observed that some sensors showed identical readings to their pair, and the graphs allowed a better understanding of the sensor behavior for future analysis.